I checked the FAQ for background images. The problem is that your image is not symmetrical in the horizontal direction. So, when the program switches sides, it correctly interprets that the boxes should flip horizontally and places the pieces accordingly. However, the program does not flip the board image only the pieces. (Note that this only happens with custom background images, not boards created by the program.) The result is the pieces are placed in the wrong locations on the board. We would have to upload a second, flipped, background image to correct this problem. However, use of a second background image requires some customized programming to associate the 2 images that only Fergus can do. We can try this, but I do not know when Fergus would be able to do the programming.

Alternatively, you could create a new image that is symmetrical in both directions. I can upload this. The program should then locate the pieces in the correct spaces. For example, the boxes could be at the bottom rather than at the top. However, this will require re-doing your space coordinates.

Sorry about this. I should have checked the FAQ before asking you to define the coordinates!